Which is cheaper, the Gruppo Gamma Vanguard Weathered Date or the Zelos Nasa Edition (sellita)?

At MSRP the Zelos Nasa Edition (sellita) is the cheaper of the two at $629, against $790 for the Gruppo Gamma Vanguard Weathered Date — a $161 gap before any retailer discounting.

Which is bigger, the Gruppo Gamma Vanguard Weathered Date or the Zelos Nasa Edition (sellita)?

The Gruppo Gamma Vanguard Weathered Date wears larger at 42mm versus 39mm for the Zelos Nasa Edition (sellita) — a 3mm difference across the dial.

Which has better water resistance, the Gruppo Gamma Vanguard Weathered Date or the Zelos Nasa Edition (sellita)?

The Gruppo Gamma Vanguard Weathered Date is rated to 100m versus 50m for the Zelos Nasa Edition (sellita).

Which has a longer power reserve, the Gruppo Gamma Vanguard Weathered Date or the Zelos Nasa Edition (sellita)?

The Gruppo Gamma Vanguard Weathered Date carries a 42-hour power reserve against 40 hours on the Zelos Nasa Edition (sellita).

What movement does the Gruppo Gamma Vanguard Weathered Date run compared to the Zelos Nasa Edition (sellita)?

The Gruppo Gamma Vanguard Weathered Date runs a automatic caliber (Miyota 9015), while the Zelos Nasa Edition (sellita) runs a manual (ETA/Peseux 7001).

Side by side

Gruppo Gamma Vanguard Weathered DatevsZelos Nasa Edition (sellita)

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Gruppo Gamma Vanguard Weathered Date

av-11

MSRP $790

Zelos Nasa Edition (sellita)

comet-39mm-nasa

MSRP $629

At a glance

17 of 29 specs differ

Diameter

Vanguard Weathered Date42mm

Nasa Edition (sellita)39mm

Power Reserve

Vanguard Weathered Date42h

Nasa Edition (sellita)40h

Water Resistance

Vanguard Weathered Date100m

Nasa Edition (sellita)50m

MSRP

Vanguard Weathered Date$790

Nasa Edition (sellita)$629

Full specifications

Case

8 specs

Crystal & Dial

4 specs

Crystal

Sapphire

Domed Sapphire

AR Coating

Yes

Inner

Dial Color

Forged Carbon

NASA Edition (Sellita)

Lume

Super-LumiNova

None

Movement

4 specs

Caliber

Miyota 9015

ETA/Peseux 7001

Type

Automatic

Manual

Power Reserve

42h

40h

Complications

Date

None

Pricing

1 specs

MSRP

$790

$629

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